Suppose that as reported by the center of disease control and prevention about 3

Question

Suppose that as reported by the center of disease control and prevention about 30% of high school students smoke tobacco. You randomly select 120 high school students to survey them on their attitudes about sciences in the movies What is the expected number of smokers? Suppose that as reported by the center of disease control and prevention about 30% of high school students smoke tobacco. You randomly select 120 high school students to survey them on their attitudes about sciences in the movies What is the expected number of smokers?

Explanation / Answer

The expected number of smokers is.

=percentage of actual smokers*total number of school students

=0.3*120

=36

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